Loose-leaf binder.



0. L. BARTLING.

LOOSE LEAP BINDER. APPLICATION FILED JULYIZG, 1909 I Patented Apr. 19,1MB.

2 SHEETS-SHEET 1,

ANDREW B. GRAHAM no PflOTD-LITHOGRAPHERS, wnsnmman. a. c.

G. L. BARTLING.

LOO$E LEAF BINDER.

APPLICATION FILED JULY 26,1909. $55 307, Patented Apr. 19, 1910.

2 SHEETS-SHEET 2.

ANDREW n. GRAHAM 00 PKOTKLLITNOGRAFHERS u AsmNmm D a CHRISTIAN L.BARTLING, 0F PORTLAND, OREGON.

LOOSE-LEAF BINDER.

Specification of Letters Patent.

Patented Apr. 19, 1910.

Application filed July 26, 1909. Serial No. 509,720.

To all whom it may concern:

Be it known that I, CHRISTIAN L. BART- LlNG, a citizen of the UnitedStates, and residing at Portland, in the county of Multnomah and Stateof Oregon, have invented a new and useful Improvement in Loose-LeafBinders, of which the following is a spear fication, reference being hadto the accompanying drawings, constitutlng a part thereof.

This invention relates to loose leaf binders of the type comprising twocovers and means, including bindmg cords, for binding the loose sheetsbetween the binding edges of the COVGITS.

My invention has for its object to provide binding devices, of the typereferred to, which are so contrived as to impose the work and stress ofclamping the loose sheets between the covers upon positive mechan calclamping devices provided at the blndlng edges of the covers andoperating on the lever principle, and to relieve the binding cords fromthe clamping stress, the only work required of them being to hold theleaves, which are slotted as usual, in place while inserting or removingother leaves.

In the drawings: Figure 1 is a perspective of my loose leaf binderillustrating the operation thereof and having parts broken away so as todisclose the binder or clamping devices; Fig. 2 is a similar viewshowing clamping means substantially the equlvalents of those shown inFig. 1, except that the actuating screw-shaft is located in the topcover near the outer edge, instead of in the binding edge of the lowercover, as shown in Fig. 1; Fig. 3 is a plan or top view of the top coverof my improved binder, embodying clamping means arranged substantiallyas shown in Fig. 1, part of the cover being broken away so as todisclose the operating parts incased within the topcover, and such partsare shown in full outline and dotted outline in their two extremepositions; Fig. 4. is a sectional rear-end elevation of the top andbottom covers, illustrating the operation of the means for clamping thebinding edges of the cover upon the loose sheets inserted between them;and Fig. 5 is a sectional detail of part of the same devices shown inFig. 4; Figs. 6 and 7 are cross sections on a line AA of Fig. 4: throughthe hinged clamping cover sections 0, d, Fig. 6 representing these partsas included in Fig.

1, and Fig. 7 showing the equivalent parts as included in Fig. 2.

Describing in the first instance my temporary binder as illustrated inFig. 1: the same comprises upper and lower covers a, I), provided attheir binding edges with hinge pieces or members 0, cl, each consistingof a hollow shell of rectangular cross section and constituting theclamping portions of the covers between which the leaves are bound. Inthe member (Z are fixed blocks 0, f, (see Figs. 4 and 5) in which arejournaled the ends of a screw shaft g, having right and left threads, onwhich threads are mounted nutlike blocks h, i. The blocks h, 2' arerectangular in cross section and are longitudinally slidable in thecover member (Z by the rotation of the screw shaft 9. In the upper covermember 0 (which is constructed like the member (Z) are provided fixedblocks j, is, in which are secured the ends of a rod Z, on which areslidably mounted blocks m, n. 0 is a key head, on the screw-shaft g,adapt ed to receive a removable key 10 by which the rotation of thescrew-shaft g is accomplished, when the clamping cover sections 0, d areto be moved together or apart for the removal or insertion of theleaves. The blocks 6, 72,, 2', f of the cover member (Z and the blocks7', m, n, is of the cover member 0 are connected by the links of thelevers g, 1 of the lazy tongs principle. Thus, by rotating the screwshaft 9, the blocks h, 2' will be moved toward or apart from each other,and to the blocks m, 77/ will be transmitted a corresponding movement,whereby the cover members 0, all may be separated or brought together atwill, as illustrated in Fig. 4. To the movable blocks m, n are hingedslotted bars 8, 25 connected with each other by the links of the lazytongs lever system a. The extremities 12,13 of the links 21. are movablyconnected to the slot ends of the bars 8, t. Arranged at right angles toand under the bars 5*, t and the links it is a draft bar 01, the outerends of which are connected by links w, 10 with the outer ends of thebars .9, t, and said links w, w are respectively connected with the topcover by links 3 y. To the ends of the bar 1) are connected the upperends of the binding cords as, w, the lower ends of which binding cordsare connected to the lower cover member 0?. Such connection isaccomplished, as shown, by providing the bar '0 with hooks15, 16.

By reason of the arrangement of the parts as above described andillustrated in Fig. 1, the rotation of the screw shaft 9 in one direction or the other will move the blocks h, 2' outward or inward andcorrespondingly move the blocks, m, n, with the efiect of compressingthe cover members 0, (Z upon each other, or moving the same apart, andthe bars 8, 6, being hinged to the blocks m, n, will be correspondinglymoved apart or together, and by their linked connections with the crossbar '12, will move the latter, so as to relatively shorten or lengthenthose portions of the cords 00, w extending between the cover members 0,(Z.

It will be seen that the purpose of the lever system a, connecting thebars 8, If, is also to cause the latter to remain parallel to each otherduring their described movement.

The type of binder shown by me in Fig. 2 is substantially in itsprinciple of operation, the same as illustrated in Fig. 1, and the partsidentical with each other in the two examples are therefore letteredalike. The only differences between the two types of clamping meansshown in Figs. 1 and 2 are the following: The threaded screw shaft g,shown in Fig. 1, is replaced by a smoothfaced rod 2, held at its ends inthe blocks 2, 5, fastened in place in the cover member (Z, and on therod .2 slide the blocks 8, 4:. To the blocks 2, 3, t and 5 theextremities of the jointed links o are connected. The actuating screwshaft 6 is journaled, near the outer end of the upper cover a, inbearings 6 The slotted bars 7, 8 (the equivalents of the above describedslotted bars 8, t) are connected by the links of the lever system 9; themanner of connection being substantially the same as described in theprior example. The extremities of the bars 7, S are provided with lugs10,11, having threaded perforations through which the screw shaft (3extends. Thus, by the rotation of the threaded shaft 6, by a key, in onedirection or the other, the bars 7, 8 will be moved toward or from eachother, and in correspondence therewith the cover members a, (Z will becompressed or separated and the cords 00, m relatively shortened orlengthened.

The key-receiving ends of the actuating screw shaft (9 or 6) may beadapted to be' fitted only by a special key, as done in other types ofloose leaf binders, the details of which are therefore unimportant. Thecords w, :22, may, of course, be replaced by wire strands.

The top cover a is arranged in the form of a hollow box in which thedescribed moving parts are contained, and the outer portion of such topcover may be strengthened by a filling strip 17, when the binder devicesdo not take up the entire area of the top cover.

In the type of my binder shown in Fig. 2, the cover-member c, hinged tothe upper cover, does not require a rod like Z (included in the devicesof Fig. l) for the blocks 7', m, a, in connecting the parallel bars 8, Ior 7, 8 with the hinged cover-member 0 are arranged to accommodate themovement of the cover plate a on the hinges a connecting the clampingcover-members 0 to said hinge plate a.

The clamping cover-members, c and (Z, hinged to the main pieces of thecover, are merely three side shells so as to permit the longitudinalmovement of the movable blocks.

The details are evident from the cross sections Figs. 6 and 7, and totrace the linkmembers of the levers q, r in these figures, such membersof the lever 7 have been lettcred r, r respectively.

I claim:

1. A loose-leaf binder comprising two covers, means connecting andadapted to compress and separate the binding edges of the covers,binding cords connected at their opposite ends with said compressing andseparating means and one cover, and means, connected with saidcompressing and separating means, adapted to shorten and lengthen thebinding cords relatively to the movement of said compressing andseparating means.

2. A loose-leaf binder comprising two covers, a. lazy tongs lever systemconnecting and adapted to compress and separate the binding edges of thecovers, a draft member in one cover, binding cords connect ed theretoand with the opposite cover, and

means connected with said lever system adapted to move the draft memberso as to lengthen and shorten the binding cords relatively to themovement of the clamping cover members.

3. A looseleaf binder comprising two covers, a lazy tongs lever systemconnecting and adapted to compress and separate the binding edges of thecovers, a draft bar in one cover, binding cords connected thereto andwith the opposite cover, and means connected with said lever systemadapted to move the draft member so as to lengthen and shorten thebinding cords relatively to the movement of the clamping cover members.

4. A loose-leaf binder comprising two covers, a lazy tongs lever systemconneet ing and adapted to compress and separate the binding edges ofthe covers, a draft member in one cover, binding cords connected theretoand with the opposite cover, and means connected with said clampingmeans and adapted to move the draft member so as to lengthen and shortenthe binding cords relative to the movement of the clamping covermembers.

binding edges of each cover, movable blocks in each of the clampingcover members and lazy tongs lever system connecting such blocks, saidlever system being adapted to compress and separate the binding edges ofthe covers in correspondence to the movement of the blocks, meansadapted to move said movable blocks together and apart, a draft memberin one cover, binding cords connected thereto and with the oppositecover, and means connected with said blockmoving means and adapted tomove the draft member so as to lengthen and shorten the binding cordsrelatively to the movement of the clamping cover members.

7. A loose-leaf binder comprising two covers, a clamping member hingedto the binding edges of each cover, a lazy tongs lever system connectingsuch clamping covermembers, means, including an actuating screw, adaptedto operate said lever system to bring the clamping members together andapart, a draft member in one cover, binding cords connected thereto andwith the opposite cover, and means connected with said lever systemadapted to move the draft member so as to lengthen'and shorten thebinding cords relatively to the movement of the clamping cover-members.

8. A loose-leaf binder comprising two covers, a clamping member hingedto the binding edges of each cover, movable blocks in the binding edgesof the covers, an actuating screw, links, arranged as lazy tongs,connecting said movable blocks and adapted to compress and separate saidbinding edges, a draft member in one cover, binding cords connectedthereto and with the opposite cover, and means connected with said leversystem adapted to move the draft member so as to lengthen and shortenthe binding cords relatively to the movement of the clampingcover-members.

9. A loose-leaf binder comprising two c0vers, a clamping member hingedto the binding edges of each cover, said clamping covermembers beingchambered longitudinally, a right and left screw shaft journaled in oneof such clamping cover-members, arod in the companion clampingcover-member, nut-like blocks on the screw shank and companion slidingblocks on said rod, and a lever system connecting the blocks adapted tocompress and separate said cover members upon the rotation of the screw,means adapted to move said movable blocks together and apart, a draftmember in one cover, binding cords connected thereto and with theopposite cover, and means connected with said lever system adapted tomove the draft member so as to lengthen and shorten the binding cordsrelatively to the movement of the clamping cover-members.

10. A loose-leaf binder comprising two covers, movable blocks in thebinding edges of the covers, an actuating screw, links, arranged as lazytongs, connecting said movable blocks and adapted to compress andseparate said bindingedges, parallel bars hinged to the movable blocksof one cover, a lever system connecting the bars and adapted to maintainthe same in their relative position while moving with said blocks, adraft bar arranged at right angles to the parallel bars, binding cordsconnected to the draft bar and the opposite covers, and an actuatingscrew-shaft and connections adapted to move said blocks and the parallelbars together and apart simultaneously.

11. A loose-leaf binder comprising two covers, a clamping member hingedto the binding edges of each cover, means, including an actuating screw,adapted to bring the clamping cover-members together and apart, parallelbars in one cover, and connected with said cover compressing means, alever system connecting the bars and adapted to maintain the same intheir relative position while moving with said blocks, a draft bararranged at right angles to the parallel bars, binding cords connectedto the draft bar and the opposite covers, an actuating screw, theconnections adapted to simultaneously operate the cover-compressingmeans and move said parallel bars.

12. A loose-leaf binder comprising two covers, a clamping member hingedto the binding edges of each cover, a lazy tongs lever system connectingsuch clamping covermembers, means, including an actuating screw, adaptedto operate said lever system to bring the clamping cover memberstogether and apart, parallel bars in one cover and connected with saidcovercompressing means, a draft bar arranged at right angles to theparallel bars, binding cords connected to the draft bar and the oppositecovers, an actuating screw, and connections adapted to simultaneouslyoperate the cover-compressing means and move said parallel bars.

13. A loose-leaf binder comprising two covers, a clamping member hingedto the binding edges of each cover, movable blocks in each of theclamping cover members and lazy tongs lever system connecting suchblocks, said lever system being adapted to compress and separate thebinding edges of the covers in correspondence to the movement of theblocks, parallel bars hinged to the movable blocks of one cover, a leversys tem connecting the bars and adapted to maintain the same in theirrelative position while moving with said blocks, a draft bar arranged atright angles to the parallel bars, binding cords connected to the draftbar and the opposite covers, an actuating screwshaft, and connectionsadapted to move said blocks and the parallel bars together and apartsimultaneously.

1%. A loose-leaf binder comprising two covers, a clamping member hingedto the binding edges of each cover, movable blocks in each of theclamping cover-members and lazy tongs lever system connecting suchblocks, said lever system being adapted to compress and separate thebinding edges of the covers in correspondence to the movement of theblocks, parallel bars hinged to the movable blocks of one cover, a leversystem connecting the bars and adapted to maintain the same in theirrelative position while moving with said blocks, a draft bar arranged atright angles to the parallel bars, links connecting such draft bar tothe parallel bars and connections between such con necting links and thecover, cords fastened at their ends to the draft bar and the oppositecover, an actuating screw-shaft, and connections adapted to move saidblocks and the parallel bars together and apart simul taneously.

15. A loose-leaf binder comprising two covers, a clamping member hingedto the binding edges of each cover, movable blocks in each of theclamping covermembers and lazy tongs lever system connecting suchblocks, said lever system being adapted to compress and separate thebinding edges of the covers in correspondence to the movement of theblocks, means adapted to move said movable blocks together and apart,parallel bars hinged to the movable blocks of one cover, a lever systemconnecting the bars and adapted to maintain the same in their relativeposition while moving with said blocks, a draft bar arranged at rightangles to the parallel bars, links connecting such draft bar to theparallel bars, and connections between such connecting links and thecover, cords fastened at their ends to the draft bar and the oppositecover.

16. A loose-leaf binder comprising two covers one thereof being hollowin part, a clamping member hinged to the binding edges of each cover,said clamping coverinembers being chambered longitudinally, a right andleft screw-shaft journaled in one of such clamping cover-members, a rodin the companion clamping cover-member, nutlike blocks on the screwshank and companion sliding blocks on said rod, and a lever systemconnecting the blocks adapted to compress and separate saidcover-members upon the rotation of the screw, parallel bars hinged tothe movable blocks of one cover, a lever system connecting the bars andadapted to maintain the same in their relative posit-ion while movingwith said blocks, a draft bar arranged at right angles to the parallelbars, binding cords connected to the draft bar and the opposite covers,an actuating screw-shaft, and connections adapted to move said blocksand the parallel bars together and apart simultaneously.

17. A loose-leaf binder comprising two covers one thereof being hollowin part, a clamping member hinged to the binding edges of each cover,said clamping covermembers being chambered longitudinally, a right andleft screw-shaft journaled in one of such clamping cover-members, a rodin the companion clamping cover-member, nutlike blocks on thescrew-shank and compan ion sliding blocks on said rod, and a leversystem connecting the blocks adapted to compress and separate saidcover-members upon the rotation of the screw, means adapted to move saidmovable blocks together and apart, parallel bars hinged to the movableblocks of one cover, a lever system connecting the bars and adapted tomaintain the same in their relative position while moving with saidblocks, a draft bar arranged at right angles to the parallel bars,binding cords connected to the draft bar and the op posite covers, linksconnecting such draft bar to the parallel bars, and connections be tweensuch connecting links and the cover, cords fastened at their ends to thedraft bar and the opposite cover.

18. A looseleaf binder comprising two covers, binding cords connectingthe same, means adapted to compress and separate the binding edges ofthe covers, and means adapted to lengthen and shorten the binding cordsrelatively to the operation of said compressing means.

CHRISTIAN L. BARTLING.

VVitne-sses CECIL Lone, JOHN SPERB.

